Date: Sat, 09 Jun 2012 10:31:17 +0300 From: Mikolaj Golub <trociny@freebsd.org> To: Ivan Voras <ivoras@freebsd.org> Cc: Alan Cox <alc@FreeBSD.org>, Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>, Robert Watson <rwatson@FreeBSD.org>, Kostik Belousov <kib@FreeBSD.org>, freebsd-hackers@freebsd.org Subject: Re: SuperPages utilization survey Message-ID: <86sje5kkl6.fsf@kopusha.home.net> In-Reply-To: <CAF-QHFXsi3SaF-rmFK-qM89LfnStKwRWN1-HRM4yg4Bt_SFAOg@mail.gmail.com> (Ivan Voras's message of "Fri, 1 Jun 2012 14:54:48 %2B0200") References: <jqac8f$6mn$1@dough.gmane.org> <alpine.BSF.2.00.1206011429160.20357@wojtek.tensor.gdynia.pl> <CAF-QHFXsi3SaF-rmFK-qM89LfnStKwRWN1-HRM4yg4Bt_SFAOg@mail.gmail.com>
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On Fri, 1 Jun 2012 14:54:48 +0200 Ivan Voras wrote: IV> On 1 June 2012 14:35, Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> wrote: >>> http://people.freebsd.org/~ivoras/stuff/spsurvey.py ... IV> If anyone posts more data, I'll analyse it. I'm more worried about the IV> granularity of procstat, where it marks the entire region if a single IV> superpage exists in it - it means any such analysis is only IV> approximate. Here is a patch (for kernel and procstat) that allows to see amount of pages mapped to superpages. http://people.freebsd.org/~trociny/procstat-superpages.cnt.1.patch Not sure it is useful enough to be committed. -- Mikolaj Golub
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